Oil of specific gravity 0.82 is pumped through a horizontal pipeline 15mm in diameter and 3Km long at the rate of 0.015m^3/s. The pump has an efficiency of 68% requires 7.5 KW to pump the oil.

(i) What is the dynamic viscosity of oil? (ii) is the flow laminar?

(10 Marks) Dec-2018

Subject Fluid Mechanics 2

Topic Laminar Flow

Difficulty Medium